CN105976747A - Display panel and driving method thereof - Google Patents
Display panel and driving method thereof Download PDFInfo
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- CN105976747A CN105976747A CN201610207927.1A CN201610207927A CN105976747A CN 105976747 A CN105976747 A CN 105976747A CN 201610207927 A CN201610207927 A CN 201610207927A CN 105976747 A CN105976747 A CN 105976747A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
Abstract
The invention provides a display panel and a driving method thereof. The display panel comprises a plurality of grid lines, a plurality of data lines which are intersected with the plurality of grid lines in an insulated manner, and a plurality of pixels which are arranged in a matrix type pixel region formed by the grid lines and the data lines in an enclosing manner. The display panel further comprises a grid driving unit and a data driving unit, wherein the grid driving unit provides an open signal for the grid lines line by line so as to open the pixels, and the data driving unit provides display voltage Vn for the data lines when the pixels are opened. The driving method comprises that the data driving unit provides front voltage for the data line coupled to one pixel at a preset time before the pixel is opened. By adopting the display panel and the driving method thereof provided by the invention, the moment of a sudden change in data signal is controlled at a stage when the grid lines do not carry out scanning through the front voltage inputted into the pixel in advance, thereby effectively suppressing influences imposed on other signals of the panel by data signal changes, and eliminating flickers caused by the influences.
Description
Technical field
The present invention relates to display field, particularly to a kind of display floater and driving method thereof.
Background technology
In the last few years, active matrix type display panel is popularized, and such as, is widely used in mobile electricity
In the mobile device such as words, panel computer, MP3, MP4.In the prior art, show as shown in Figure 1
Showing device includes a plurality of gate lines G ate1 Gate4, a plurality of data lines Data1 Data9 and multiple
It is positioned at the pixel 10 of gate lines G ate1 Gate4 and data wire Data1 Data9 infall, multiple pictures
Element is by thin film transistor (TFT) (TFT) 12 and gate lines G ate1 Gate4, data wire Data1 Data9
Couple.The described finger thin film transistor (TFT) 12 that couples includes multiple connection end, thin film transistor (TFT) (TFT) 12
Gate terminal electrically connect with gate lines G ate1 Gate4, the source terminal of thin film transistor (TFT) (TFT) 12
Electrically connect with data wire Data1 Data9, the drain electrode end of thin film transistor (TFT) (TFT) 12 and pixel electricity
Connect.
When driving display floater, data signal pixel coupled is by the gate line coupled and data
In line input pixel, i.e. displayable image.Sequential chart as in figure 2 it is shown, for the pixel of the first row,
There is provided one to open signal to gate lines G ate1, open the thin film transistor (TFT) (TFT) 12 of the first row,
For first pixel of the first row, input its data signal by data wire Data1；When the first row is swept
There is provided one to open signal to again after having retouched gate lines G ate2, open the thin film transistor (TFT) of the second row
(TFT) 12, for first pixel of the second row, input its data signal by data wire Data1.
Use this existing type of drive to drive display floater, panel can be made to occur when gate line scans dodging
Bright, affect display effect.
Summary of the invention
The embodiments of the invention display floater that technical problem is that prior art to be solved and driving thereof
The problem of the film flicker that method exists.
For solving the problems referred to above, the present invention provides a kind of display floater, including: a plurality of gate line and
A plurality of data lines that the insulation of described a plurality of gate line intersects and multiple be arranged on by described gate line and data
Line encloses the pixel in the matrix-like pixel region of formation, and described pixel is by switching device and described grid
Polar curve and described data wire couple；
Described display floater also includes drive element of the grid and data drive unit, described raster data model list
Unit line by line to described gate line provide open signal to open described pixel line by line, described data-driven list
Unit provides display voltage Vn when described pixel is opened to described data wire；
Described data drive unit scheduled time before pixel is opened described in one couples to described pixel
Data wire provide forward voltage.The present invention also provides for the driving method of a kind of display floater, described aobvious
Show that panel includes a plurality of gate line and the described a plurality of gate line a plurality of data lines intersected of insulation and multiple
It is arranged on and is enclosed the pixel in the matrix-like pixel region formed by described gate line and data wire, described
Pixel is coupled with described gate line and described data wire by switching device, and described driving method includes:
Before described in one, pixel is opened, the scheduled time is to preposition with the data wire offer that described pixel couples
Voltage；
Display voltage Vn is provided at the data wire that pixel described in Shi Xiangyu couples that is opened of pixel described in.
The driving method that the present invention provides, the most defeated by opening the blank stage in sigtnal interval at two
Enter the forward voltage of described pixel to be opened, control not have at gate line by the moment that data signal is suddenlyd change
In the stage being scanned, effectively inhibit the impact that data signal change other signals of counter plate produce,
Eliminate the flicker thus caused.
Accompanying drawing explanation
Fig. 1 is the top view of prior art pel array；
Fig. 2 is the driver' s timing figure of prior art pel array；
Fig. 3 a is the top view of the display floater of one embodiment of the invention；
Fig. 3 b is the top view of the display floater of another embodiment of the present invention
Fig. 4 is the driver' s timing figure of one embodiment of the invention；
Fig. 5 is the driver' s timing figure of another embodiment of the present invention；
Fig. 6 is the driver' s timing figure of further embodiment of the present invention；
Fig. 7 is the driving method figure of the display floater of one embodiment of the invention；
Fig. 8 is the driving method figure of the display floater of another embodiment of the present invention；
Fig. 9 is the driving method figure of the display floater of further embodiment of the present invention.
Detailed description of the invention
Understandable for enabling the above-mentioned purpose of the present invention, feature and advantage to become apparent from, below in conjunction with attached
The detailed description of the invention of the present invention is described in detail by figure.
Elaborate a lot of detail in the following description so that fully understanding the present invention, but this
Invention can also use other to be different from alternate manner described here to implement, and therefore the present invention is not subject to
The restriction of following public specific embodiment.
" data signal " of the present invention is the signal being supplied to data wire, and data signal can be along with
The display of panel needs to keep or change." unlatching signal " of the present invention is for being supplied to scanning
The signal of line, makes data wire be filled with voltage for pixel opening switching device, opens signal according to switch
The difference of device can be high level voltage, it is also possible to be low level voltage.Of the present invention " aobvious
Show voltage " it is the switching device voltage that is supplied to data wire when opening, according to the picture that pixel is to be shown
And change." forward voltage " of the present invention is when the switching device of pixel electrical connection is not switched on,
The data wire coupled for this pixel shifts to an earlier date the voltage that the scheduled time provides, and it can be a magnitude of voltage,
Multiple magnitudes of voltage in multiple stage can also be divided into.
The direction of " OK " of the present invention is gate line bearing of trend, owing to pixel passes through switching device
Coupling with gate line, therefore pixel is also arranged as multirow.The direction of " arranging " of the present invention is data
Line bearing of trend, owing to pixel is coupled with gate line by switching device, therefore pixel is also arranged as many
Row.
Inventor finds through test of many times, and panel of the prior art and driving method, at next line
When starting to scan, the signal of the input of data wire has a moment generation sudden change.Due to data signal
Same power supply, now data are derived from other signals (such as public voltage signal) on panel
The sudden change of signal also can cause the change of other signals (such as public voltage signal) on panel, picture
There will be flicker.The present invention provides a kind of display floater, can input display electricity the most in advance
Pressure, solves the problem of film flicker in prior art, and the present invention is using TFT as the one of switching device
Example.
Fig. 3 a illustrates the preferred structure of one of which, and in figure, display floater 30 includes a plurality of gate line
31, a plurality of data lines 32 and multiple pixel 33, pixel 33 is arranged at gate line 31 and data wire 32
Enclose in the matrix-like pixel region of formation.Pixel 33 is by switching device 36 and gate line 31 sum
Couple according to line 32.The described finger switching device 36 that couples includes multiple connection end, the grid of switching device 36
Extremely electrically connecting with gate line 31, the source terminal of switching device 36 electrically connects with data wire 32, switch
The drain electrode end of device 36 electrically connects with pixel 33.Display floater 30 also includes drive element of the grid 34
With data drive unit 35, drive element of the grid 34 connects a plurality of described gate line 31, data-driven
Unit 35 connects a plurality of data lines 32.Drive element of the grid 34 provides to gate line 31 line by line and opens letter
Number to open pixel 33 line by line, data drive unit 35 carries to data wire 32 when pixel 33 is opened
For display voltage Vp；Data drive unit 35 before a pixel 33 is opened the scheduled time to pixel
The data wire 32 that 33 couple provides forward voltage.
The panel that the embodiment of the present invention provides, in addition to the preferred structure shown in Fig. 3 a, may also include multiple spreading out
The structures such as raw structure, such as pixel double grid, pixel grid altogether or pixel data wire altogether, one of which array
Panel top view such as Fig. 3 b of structure.Display floater 300 includes a plurality of first grid polar curve 31a, a plurality of
Second gate line 31b, a plurality of data lines 320, multiple first pixel 33a and multiple second pixel 33b.
Pixel 33a, 33b are arranged at first grid polar curve 31a, second gate line 31b and enclose shape with data wire 32
In the matrix-like pixel region become.First grid polar curve 31a couples the first picture by the first switching device 36a
Element 33a, second gate line 31b couple the second pixel 33b by second switch device 36b.A plurality of number
The first pixel 33a or is coupled by the first switching device 36a or second switch device 36b according to line 320
Two pixels 33b.Display floater 300 also includes drive element of the grid 340 and data drive unit 350,
Drive element of the grid 340 electrically connects a plurality of first grid polar curve 31a and second gate line 31b, data-driven
Unit 350 electrically connects a plurality of data lines 320.Data drive unit 35 is in the first pixel 33a or second
Pixel 33b be opened before the scheduled time to the data coupled with the first pixel 33a or the second pixel 33b
Line 32 provides forward voltage.
In addition to the panel construction shown in Fig. 3 a and Fig. 3 b, other before pixel is opened the scheduled time with
The data wire that imagination element couples provides the panel of forward voltage the most within the scope of the present invention.Specifically carry
For inputting the sequential chart of forward voltage as shown in Figure 4 to data wire 33 in advance, drive in conjunction with Fig. 3 a grid
Moving cell 34 is for providing a high level successively for each bar gate lines G ate1, Gate2, Gate3 line by line
Unlatching signal, data drive unit 35 provides data signal respectively for pieces of data line 32.Fig. 4
Showing the data signal on N data line DataN (N is positive integer), it is according to the change of time
Change and carry out just changing.Opening signal phase 41 in conjunction with Fig. 3 a and Fig. 4, data signal is display electricity
Pressure, is that the pixel 33 coupled is charged by the switching device 36 opened.It is at the unlatching signal of Gate1
Stage is the charging of the first row n-th pixel, and the unlatching signal phase at Gate2 is the second row n-th
Pixel is charged, and the unlatching signal phase at Gate3 is the charging of the third line n-th pixel, the like.
From Fig. 3 a and Fig. 4 can it is further seen that, be each bar gate line at drive element of the grid 34
Gate1, Gate2, Gate3 provide and open certain a predetermined time before signal, data drive unit 35
A forward voltage is provided for data wire 32.Pre-timing before i.e. data drive unit 35 pixel is opened
Between provide forward voltage to the data wire 32 coupled with pixel.
For the first row n-th pixel, before data drive unit 35 provides to respective data lines DataN
Putting voltage ratio drive element of the grid 34 provides unlatching signal to be advanced by the scheduled time to gate lines G ate1
T1；N-th pixel and the n-th pixel of the third line, data drive unit 35 for the second row
Forward voltage is provided, always opens corresponding row gate lines G ate2, Gate3 than drive element of the grid 34 ratio
Signal shift to an earlier date the scheduled time T2, T3.
Now, it is not difficult to find out that the voltage being supplied on Com line shows change in voltage on data wire 32
Time, also have a less fluctuation.But suddenly change due to the data signal on data wire 32 and drive at grid
When moving cell 34 does not also send unlatching signal, when being i.e. not switched on switching device 36, therefore on COM line
Voltage pulsation when being also at being not switched on switching device 36, now pixel 33 is in floating state, its
Will not be affected by COM voltage pulsation, and then be inhibited flicker.
Further, the scheduled time T1, T2, T3 in advance each other can be identical, it is also possible to different.
Further, forward voltage can be identical with display voltage Vn, it is also possible to display voltage Vn not
With, forward voltage can be unique voltage, it is possible to be multiple different voltage stage by stage.
The embodiment of the present invention may further provide scheduled time scope in advance, in conjunction with Fig. 3 a and Fig. 4
Shown drive element of the grid 34 provides gate lines G ate1 to open signal to providing gate lines G ate2 to open
The time interval of signal is the blank stage 42.Data drive unit 35 provides and connects Nth column pixel
The display voltage of data wire DataN, always provides corresponding row gate line than drive element of the grid 34
Gate1, Gate2, Gate3 open time T1, T2, T3 that signal is the most predetermined.Display signal
Moment in advance was in the line space white stage 42, and predetermined time T1, T2, T3 is no more than sky
The time in white stage 42.In open stage 41, drive element of the grid 34 provides corresponding gate line
The unlatching signal of Gate1, Gate2, Gate3, makes connection correspondence gate lines G ate1, Gate2, Gate3
Switching device 36 be in open stage, this switching device can be thin film transistor (TFT) (TFT)；In blank
In the stage 42, drive element of the grid 34 stops providing the unlatching letter of gate lines G ate1, Gate2, Gate3
Number, unlatching signal is not the most provided, makes electrical connection correspondence gate lines G ate1, the switch of Gate2, Gate3
Device 36 is in dwell period.
The display floater that the present invention provides, can connect the forward voltage of at least one pixel of row in pixel
Switching device open the input of the premise previous scheduled time, the blank stage is divided into the first of low-power consumption
Son blank stage and the second son blank stage carrying out data signal buffering change；Both display surface had been saved
The power consumption of plate, the data signal that the regulation of intelligence is to be entered on the basis of input data signal in advance again
Value, alleviate the sudden change of data signal, further obviate data signal and suddenly change the impact that brings.
The embodiment of the present invention may also provide a kind of panel, carries out dividing reducing by the blank stage further
Power consumption, also can carry out steps input in advance by forward voltage, to reduce the impact that its sudden change produces.
In conjunction with Fig. 3 a and Fig. 5, drive element of the grid 34 provides adjacent two time intervals opening signal
Gate lines G ate2 and Gate3 is provided to open signal for blank stage 51, i.e. drive element of the grid 34
Time interval is the blank stage 51.Drive element of the grid 34 be line by line for each bar gate lines G ate1,
Gate2, Gate3 provide the unlatching signal of a high level successively, for opening signal phase 50；Data
Driver element 35 provides data signal respectively for pieces of data line 32.Opening signal phase 50, number
Display voltage Vn is provided respectively for pieces of data line 32, by the derailing switch opened according to driver element 35
Part 36 is that the pixel 33 coupled is charged.It is the first row n-th in the unlatching signal phase of Gate1
Pixel is charged, and the unlatching signal phase at Gate2 is the second row n-th pixel charging, at Gate3
Unlatching signal phase be the third line n-th pixel charging, the like.
The blank stage 51 is further divided into the first son blank stage 52 and the second son blank stage 53,
In the same blank stage 51, the first son blank stage 52 is early than the second son blank stage 53.With N
As a example by row pixel, data drive unit 35 provides data signal for data wire DataN；Empty at the first son
In the white stage 52, data drive unit provides the first voltage V1 for data wire DataN；Blank at the second son
In the stage, data drive unit provides the second voltage V2 for data wire Data1.
Being expert at the power consumption in blank stage for reducing display floater, the first voltage V1 is that data drive unit can
The lowest-order grayscale voltage of the gray-scale voltage value of output.
Further, the second voltage V2 can between the first voltage V1 and display voltage Vn to be supplied,
Second voltage V2 also can be equal to display voltage Vn to be supplied.I.e. when the second voltage V2 is more than first
V1 < V2≤Vn is met during voltage V1；Vn is met when the second voltage V2 is less than the first voltage V1
≤V2<V1。
As it is shown in figure 5, for the pixel of the third line Nth column, the second of its second son blank stage 53
Voltage V2 is more than the first voltage V1 in the first son blank stage, less than the third line Nth column to be supplied
The display voltage Vn of pixel.
The display floater that the present invention provides, can be divided into the first blank rank of son of low-power consumption by white for the line space stage
The second son blank stage that section and the data signal buffering that carries out change；Both the power consumption of display floater had been saved,
The value of the data signal that the regulation of intelligence is to be entered on the basis of inputting the second voltage in advance, alleviates again
The sudden change of data signal, further obviates the impact that data signal sudden change brings.
The embodiment of the present invention may also provide a kind of display floater, it can be determined that the amount of data signal sudden change with
Set the relation of threshold value, in advance data signal is carried out stepped intelligent input.
As shown in Figure 6, drive element of the grid provides and opens to successively gate lines G ate1, Gate2, Gate3
Opening signal, data drive unit provides data signal respectively to pieces of data line.With previous embodiment phase
It will not go into details for same part, only describes its distinctive points.As a example by Nth column pixel, the first row n-th
Pixel display voltage to be entered is Vj+V1, and the second row n-th pixel display voltage to be entered is
Vp+V1, the third line n-th pixel display voltage to be entered is V1-Vq.Set threshold voltage is
V0, data signal Sudden Changing Rate refers to the absolute of the difference of display voltage to be entered and the first voltage V1
Value, the first voltage is the gray scale voltage of lowest-order.
For the first row n-th pixel, its display voltage Vj+V1 to be entered and the first voltage V1
Difference Vj less than threshold voltage V0, therefore input display to be entered in advance in the second son blank stage
Voltage Vj+V1.
For the n-th pixel of the second row, its display voltage Vp+V1 to be entered and the first voltage
Difference Vp of V1 meets relation:Therefore its second son blank stage is divided into 3
Stage input voltage, first stage input V1+Vp/3, second stage input V1+2Vp/3, the 3rd rank
Section input V1+Vp.
For the n-th pixel of the third line, its display voltage V1-Vq to be entered and the first voltage
The absolute value Vq of the difference of V1 meets relation:Therefore its second son blank stage
It is divided into 2 stage input voltages, first stage input V1-Vq/2, second stage input V1-Vq.
The display floater that the embodiment of the present invention provides, can set threshold value, is dashed forward by comparison data signal
Variable and the size of threshold value, carry out substep and improve or reduce forward voltage, until electric with display to be entered
Press equal；And when sign mutation amount beyond threshold value too many time, it is also possible to sign mutation amount intelligence is divided
Become multistage, in steps change, be inherently eliminated the flicker that data signal sudden change causes.
The embodiment of the present invention also provides for the driving method of a kind of display floater, the top view of its display floater
As shown in Figure 3 a, display floater 30 includes a plurality of gate line 31, a plurality of data lines 32 and multiple pixel
33, pixel 33 is arranged in the matrix-like pixel region that gate line 31 encloses formation with data wire 32.
A plurality of gate line 31 couples the pixel 33 along the arrangement of gate line bearing of trend by switching device 36, many
Data line 32 couples the pixel 33 extended along data wire direction by switching device 36.Described couple
Refer to that switching device 36 includes multiple connection end, the gate terminal electric connection grid polar curve 31 of switching device 36,
The source terminal electrical connection data wire 32 of switching device 36, the drain electrode end electrical connection pixel of switching device 36
33.Fig. 3 illustrate only the situation that switching device 36 is thin film transistor (TFT).Display floater 30 also includes
Drive element of the grid 34 and data drive unit 35, drive element of the grid 34 electrically connects a plurality of described grid
Polar curve 31, data drive unit 35 electrically connects a plurality of data lines 32.Drive the step of display floater 30
As it is shown in fig. 7, comprises:
S1: the scheduled time is to the data wire offer coupled with described pixel before pixel is opened described in one
Forward voltage；
S2: provide display voltage at the data wire that pixel described in Shi Xiangyu couples that is opened of pixel described in
Vn。
In conjunction with in the sequential of Fig. 4, step S1 and step S2, it is i.e. to show pixel coupling that pixel is opened
The gate line connect provides opens signal.In step sl: for a certain data line DataN, it connects
In the Nth column pixel connect, for the first row n-th pixel, the n-th pixel and the 3rd of the second row
The n-th pixel of row, provides forward voltage all to the data wire DataN coupled
In step s 2: for the first row n-th pixel, after have passed through scheduled time T1, be
Gate lines G ate1 provides opens signal, provides display voltage for data wire DataN；For the second row
N-th pixel, after have passed through scheduled time T2, just provides for gate lines G ate2 and opens signal, for
Data wire DataN provides display voltage；For the third line n-th pixel, have passed through scheduled time T3
After, just provide for gate lines G ate3 and open signal, provide display voltage for data wire DataN.
Owing to pel array includes that multiple pixel, above-mentioned driving method farther include line by line to described
Gate line provides opens signal, it is provided that adjacent two time intervals opening signal are the blank stage,
The data wire that the described blank stage couples to pixel at least one described provides described forward voltage.Continue
In conjunction with Fig. 4, provide unlatching signal successively for each bar gate lines G ate1, Gate2, Gate3, adjacent two
Open signal, if the time interval opened between signal of gate lines G ate1 and Gate2 is the blank stage
40.Although adjacent two unlatching signals are supplied to adjacent gate line shown in Fig. 4, but it is line by line
Open and also include that being followed successively by non-conterminous two gate lines provides unlatching signal.Figure 4, it is seen that
The forward voltage scheduled time T1, T2 and T3 in advance is in the blank stage and the scheduled time T1, T2
Can be equal with T3, it is also possible to unequal.
The driving method of the display floater of embodiment of the present invention offer is provided, efficiently utilizes row and row
In the blank stage between driving, make data signal open premutation at thin film transistor (TFT), reduce data letter
Number sudden change other signals of counter plate impact, it is suppressed that the flicker that factor data sign mutation causes.
Further, the display voltage to be supplied step S2 inputted in advance, it is also possible to dash forward according to it
The size of variable, optimizes the mode of its input, and as shown in Figure 8, step S1 can farther include:
Step S11: the first son blank stage, the data wire coupled to pixel at least one described provides the
One voltage V1；
Step S12: the second son blank stage, the data wire coupled to pixel at least one described provides the
Two voltage V2.
The gray scale that the first voltage V1 is the exportable lowest-order of data drive unit electricity in step S11
Pressure, the second voltage V2 in step S12 can between the first voltage V1 and display voltage to be supplied,
Second voltage V2 also can be equal to display voltage to be supplied.I.e. when the second voltage V2 is more than the first voltage
V1 < V2≤Vn is met during V1；When the second voltage V2 less than the first voltage V1 time meet Vn≤
V2<V1。
In the same blank stage, the first son blank stage is early than the second son blank stage.
In conjunction with the sequential of Fig. 5, the blank stage 51 was further divided into for the first son blank stage 52 and second
In the son blank stage 53, in the same blank stage 51, the first son blank stage 52 is empty early than the second son
The white stage 53.As a example by Nth column pixel, data drive unit 35 provides number for data wire DataN
The number of it is believed that；In the first son blank stage 52, data drive unit provides the first electricity for data wire DataN
Pressure V1；In the second son blank stage, data drive unit is data wire Data1 the second voltage V2.
Being expert at the power consumption in blank stage for reducing display floater, the first voltage V1 is that data drive unit can
The lowest-order grayscale voltage of the gray-scale voltage value of output.
Further, the second voltage V2 can between the first voltage V1 and display voltage to be supplied,
Two voltage V2 also can be equal to display voltage to be supplied.I.e. when the second voltage V2 is more than the first voltage
V1 < V2≤Vn is met during V1；When the second voltage V2 less than the first voltage V1 time meet Vn≤
V2<V1。
As it is shown in figure 5, for the pixel of the third line Nth column, the second of its second son blank stage 53
Voltage V2 is more than the first voltage V1 in the first son blank stage, less than (i.e. the third line N to be supplied
Row pixel) display voltage Vn.
Additionally, driving of display voltage to be supplied will be inputted in advance through once buffering except above-mentioned offer
Dynamic method is, it is to be supplied that the embodiment of the present invention may also provide inputting in advance of the notch cuttype of a kind of intelligence
The driving method of display voltage.As it is shown in figure 9, step S1 can farther include:
Step S11 ': set a threshold X；
Step S12 ': judge the absolute value of the difference of described display voltage Vn and described first voltage V1
Y and the relation of described threshold X, if Y≤X enters step S13 '；If there is N, make Y full
Foot relationEnter step S14 '；
Step S13 ': the described second son blank stage shifts to an earlier date described predetermined time input voltage Vn；
Step S14 ': the described second son blank stage farther includes (N+1) individual stage, and the K stage is defeated
Enter voltage(1≤K≤N, K, N are positive integer)
Step S12 ' can be by the difference of constantly segmentation display voltage Vn and described first voltage V1
Absolute value Y so that it is (N+1) point one less than or equal to threshold X, then will described second blank
Stage is divided into (N+1) individual stage, and each stage improves on the basis of the previous stage or reduces
Y/(N+1)。
As shown in Figure 6, drive element of the grid provides and opens to successively gate lines G ate1, Gate2, Gate3
Opening signal, as a example by first row pixel, first pixel of the first row display voltage to be entered is
Vj+V1, the second row first pixel display voltage to be entered is Vp+V1, first picture of the third line
Element display voltage to be entered is V1-Vq.The threshold voltage of data signal change is V0, data signal
Sudden Changing Rate refers to the absolute value of the difference of display voltage Vn to be entered and the first voltage V1, the first electricity
Pressure is the gray scale voltage of lowest-order.
As a example by Nth column pixel, the first row n-th pixel display voltage to be entered is Vj+V1,
Second row n-th pixel display voltage to be entered is Vp+V1, and the third line n-th pixel is to be entered
Display voltage be V1-Vq.The threshold voltage of data signal change is V0, and data signal Sudden Changing Rate is
Referring to the absolute value of the difference of display voltage to be entered and the first voltage V1, the first voltage is lowest-order
Gray scale voltage.
For the first row n-th pixel, its display voltage Vj+V1 to be entered and the first voltage V1
Difference Vj less than threshold voltage V0, therefore input display to be entered in advance in the second son blank stage
Voltage Vj+V1.
For the n-th pixel of the second row, its display voltage Vp+V1 to be entered and the first voltage
Difference Vp of V1 is more than threshold voltage V0；After being reduced to half, Vp/2 is still greater than threshold voltage
V0；Continue to be reduced to Vp/3, find that it meets relation:Therefore its
Two son blank stages were divided into 3 stage input voltages, first stage input V1+Vp/3, second stage
Input V1+2Vp/3, phase III input V1+Vp.
For the n-th pixel of the third line, its display voltage V1-Vq to be entered and the first voltage
The absolute value Vq of the difference of V1 is more than threshold voltage V0；It is reduced to Vq/3, meets and close
System:Therefore its second son blank stage is divided into 2 stage input voltages, the
One stage input V1-Vq/2, second stage input V1-Vq.
Visible, that the embodiment of the present invention provides driving method, can be by constantly segmentation display voltage Vn
Absolute value Y with the difference of described first voltage V1 so that it is (N+1) point one less than described threshold
Value X, is then divided into (N+1) individual stage by the described second blank stage, and each stage is on previous rank
Improve or reduce Y/ (N+1) on the basis of Duan so that it is substantially on other signals of display device without impact,
It is inherently eliminated the flicker produced by data signal sudden change.
It should be noted that above example can be used for reference mutually, comprehensively use.Although the present invention is
Open as above with preferred embodiment, but it is not for limiting the present invention, any people in the art
Member without departing from the spirit and scope of the present invention, may be by method and the technology of the disclosure above
Hold and technical solution of the present invention is made possible variation and amendment, therefore, every without departing from skill of the present invention
The content of art scheme, any simple modification above example made according to the technical spirit of the present invention,
Equivalent variations and modification, belong to the protection domain of technical solution of the present invention.
Claims (10)
1. a display floater, including: a plurality of gate line intersects with the insulation of described a plurality of gate line
A plurality of data lines and multiple being arranged on are enclosed, by described gate line and data wire, the matrix-like pixel district formed
Pixel in territory, described pixel is coupled with described gate line and described data wire by switching device；
Described display floater also includes drive element of the grid and data drive unit, described raster data model list
Unit line by line to described gate line provide open signal to open described pixel line by line, described data-driven list
Unit provides display voltage Vn when described pixel is opened to described data wire；
Described data drive unit scheduled time before pixel is opened described in one couples to described pixel
Data wire provide forward voltage.
2. display floater as claimed in claim 1, it is characterised in that described drive element of the grid carries
Being the blank stage for adjacent two time intervals opening signal, described data drive unit is at described sky
The data wire that the white stage couples to described pixel provides described forward voltage.
3. display floater as claimed in claim 2, it is characterised in that the described blank stage is further
Including the first son blank stage and the second son blank stage, within the same described blank stage described first
The son blank stage is early than the described second son blank stage；
Described data drive unit provides described in the described blank stage to the data wire that described pixel couples
Forward voltage includes: described data drive unit coupled to described pixel in the described first son blank stage
Data wire the first voltage V1 is provided, described data drive unit in the described second son blank stage to institute
State the data wire that pixel couples and the second voltage V2 is provided.
4. display floater as claimed in claim 2, it is characterised in that the described blank stage is further
Including the first son blank stage and the second son blank stage, at the first son described in the same described blank stage
The blank stage is early than the described second son blank stage；
Described data drive unit provides described in the described blank stage to the data wire that described pixel couples
Forward voltage includes: described data drive unit provides the first voltage V1 in the described first son blank stage；
Set a threshold X, exhausted when described display voltage Vn and the difference of described first voltage V1
Value Y is met relationTime, the described second son blank stage farther includes
(N+1) the individual stage, in the data wire input that data drive unit described in the K stage couples to described pixel
VoltageWhen the change Y of described data signal meets relation Y≤X,
The data wire input electricity that described data drive unit coupled to described pixel in the described second son blank stage
Pressure Vn, 1≤K≤N, K, N are positive integer.
5. a driving method for display floater, described display floater includes that a plurality of gate line is with described
A plurality of data lines and multiple being arranged on that the insulation of a plurality of gate line intersects are enclosed with data wire by described gate line
Closing the pixel in the matrix-like pixel region formed, described pixel is by switching device and described gate line
Coupling with described data wire, described driving method includes:
Before described in one, pixel is opened, the scheduled time is to preposition with the data wire offer that described pixel couples
Voltage；
Display voltage Vn is provided at the data wire that pixel described in Shi Xiangyu couples that is opened of pixel described in.
6. driving method as claimed in claim 5, it is characterised in that carry to described gate line line by line
For opening signal to open described pixel line by line, it is provided that adjacent two time intervals opening signal are empty
In the white stage, the data wire coupled to described pixel in the described blank stage provides described forward voltage.
7. driving method as claimed in claim 6, it is characterised in that the described line space white stage enters
Step includes the first son blank stage and the second son blank stage, within the same described blank stage, described
First son blank stage is early than the described second son blank stage；
Described data drive unit provides described in the described blank stage to the data wire that described pixel couples
Forward voltage includes: the data wire coupled to described pixel in the described first son blank stage provides first
Voltage V1, provides the second voltage in the described second son blank stage to the data wire that described pixel couples
V2。
8. driving method as claimed in claim 7, it is characterised in that described second voltage V2 is full
Foot relation: V1 < V2≤Vn or Vn≤V2 < V1.
9. driving method as claimed in claim 6 is characterized in that, the described blank stage wraps further
Including the first son blank stage and the second son blank stage, described data drive unit is in the described blank stage
The data wire coupled to described pixel provides described forward voltage to include:
The first voltage V1 is provided to the data wire that described pixel couples in the described first son blank stage；
Set a threshold X, exhausted when described display voltage Vn and the difference of described first voltage V1
Value Y is met relationTime (N is positive integer), the described second blank rank of son
Section farther includes (N+1) individual stage, at the data wire input voltage that the K stage couples to described pixelDifference as described display voltage Vn and described first voltage V1
When absolute value Y meets relation Y≤X, at the number that the described second son blank stage couples to described pixel
According to line input voltage Vn, 1≤K≤N, K, N are positive integer.
10. the driving method as described in claim 7 or 9, it is characterised in that described first voltage
V1 is the gray-scale voltage value of the lowest-order of described data drive unit output.
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